The Olfa Woody Cutter Model Snap Off Knife 18mm with a Wheel Lock is a heavy-duty utility knife designed for cutting tough materials such as wood, plastic, cardboard, and more. The 18mm blade provides extra width and stability for precise cutting. The "Snap Off" feature allows you to replace the dull part of the blade by snapping it off, providing a sharp edge for continued use. The "Wheel Lock" mechanism securely locks the blade in place during use, ensuring safety and preventing accidental blade movement. This cutter is ideal for professionals and DIY enthusiasts who need a reliable tool for demanding cutting tasks.